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From: Alan Mackenzie <acm@muc.de>
To: 20146@debbugs.gnu.org
Subject: bug#20146: font-lock-extend-jit-lock-region-after-change: results are discarded instead of being returned.
Date: Thu, 19 Mar 2015 23:01:36 +0000	[thread overview]
Message-ID: <20150319230136.GC2753@acm.fritz.box> (raw)

Hi, Emacs

In font-lock-extend-jit-lock-region-after-change in font-lock.el, the
new fontification region is calculated by funcalling
font-lock-extend-after-change-region-function.  The result of this
funcall is assigned to internal variables beg and end.

To return these values to the caller, they should be written to the
dynamically bound variables jit-lock-start and jit-lock-end.  This is
only done in the case

    (memq 'font-lock-extend-region-wholelines
           font-lock-extend-region-functions)

.  It should be done in all cases.

-- 
Alan Mackenzie (Nuremberg, Germany).





             reply	other threads:[~2015-03-19 23:01 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-19 23:01 Alan Mackenzie [this message]
2015-03-20 14:20 ` bug#20146: font-lock-extend-jit-lock-region-after-change: results are discarded instead of being returned Stefan Monnier
2015-03-20 16:07   ` Alan Mackenzie
2015-03-20 19:39     ` Stefan Monnier
2015-03-21  0:00       ` Alan Mackenzie
2015-03-21  1:06         ` Daniel Colascione
2015-03-21 10:58           ` Alan Mackenzie
2015-03-21 11:36             ` Daniel Colascione
2015-03-21  2:29         ` Stefan Monnier
2015-03-21 13:19           ` Alan Mackenzie
2015-03-21 14:55             ` Stefan Monnier
2015-03-21 21:03           ` Alan Mackenzie
2015-03-21 22:30             ` Stefan Monnier
2015-03-22 14:13               ` Alan Mackenzie
2015-03-23  2:01                 ` Stefan Monnier
2015-03-25 17:12                   ` Alan Mackenzie
2015-03-25 18:26                     ` Stefan Monnier
2019-10-30 15:53     ` Lars Ingebrigtsen

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